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gimmesomeshelter
Samba Member
Joined: May 08, 2004
Posts: 1466
Location: San Carlos, CA
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 Posted: Fri Oct 10, 2014 6:57 pm Post subject: Low friction generator? |
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I was reading how someone gained 3HP at 4000 RPM by replacing a 28 blade fan with an early 16 blade model. I suspect our generators also eat up a lot of precious horsepower. Has anyone tried installing ceramic bearings in their generator? If so, did it make a difference?
Cheers,
Paul
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Richard Feynman |
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henry roberts
Samba Member
Joined: February 24, 2003
Posts: 1275
Location: australia
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| Posted: Fri Oct 10, 2014 9:07 pm Post subject: |
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I haven't tried it but I like the way you think.
reducing the contact surface area of the brushes should be good for 0.0002mph on the salt. 
treuhaft did a aluminium fan in the 80's, I think it was a 28 blade though.
fan design seems to me to be an area with good potential for bolt on hp savings on all t1 motors, I wish I had the engineering knowledge and funds to design one that worked and get it on the market. |
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avus
Samba Member
Joined: November 11, 2005
Posts: 268
Location: Drain, Oregon
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| Posted: Fri Oct 10, 2014 9:29 pm Post subject: Re: Low friction generator? |
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| gimmesomeshelter wrote: |
I was reading how someone gained 3HP at 4000 RPM by replacing a 28 blade fan with an early 16 blade model. I suspect our generators also eat up a lot of precious horsepower. Has anyone tried installing ceramic bearings in their generator? If so, did it make a difference?
Cheers,
Paul |
8 blades--Porsche did this.
I think disabling the charging system by disconnecting the field (DF) wire would help more than slippery generator bearings. |
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grueni
Samba Member
Joined: November 03, 2008
Posts: 582
Location: Germany
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| Posted: Sat Oct 11, 2014 4:41 am Post subject: |
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the 16 blade has also better cooling.
i did once 3 bearings in the generator instead of 2 and it sucked energy.
but i would not go with other bearings.
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1960 1584cc turbocharged, 35,5/32 (11,117s 1/4mile ) |
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andy198712
Samba Member
Joined: December 05, 2010
Posts: 1209
Location: Cornwall - UK
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| Posted: Sat Oct 11, 2014 11:07 am Post subject: |
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wouldn't you get the same effects with a smaller bottom pulley?
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